Results 31 to 40 of about 2,918 (127)

Stemflow Dynamics in the Jamari National Forest (Brazilian Amazon): I. The Role of Tree Structure

open access: yesBiotropica, Volume 58, Issue 3, May 2026.
A portion of rainfall that contacts tree canopies is drained down tree stems as stemflow. Stemflow is an underexamined component of rainfall partitioning in tropical forests. To investigate how tree canopy structural attributes influence stemflow in the Brazilian Amazon, we measured stemflow, rainfall, and dendrometric parameters of 56 trees in the ...
Jeferson Alberto de Lima   +5 more
wiley   +1 more source

Cooperative human signals to honeyguides form local dialects

open access: yesPeople and Nature, Volume 8, Issue 3, Page 682-694, March 2026.
Abstract Human language enables the exchange of complex information and precise instructions for collaborative planning and action. It rapidly evolves through social learning, generating diverse cultural communication signals used not only with other humans, but also with domesticated animals bred or trained to respond.
Jessica E. M. van der Wal   +5 more
wiley   +1 more source

Testing the size‐grain hypothesis in a generalist predator: The case of an ant species in the Brazilian savannah

open access: yesJournal of Zoology, Volume 328, Issue 3, Page 234-247, March 2026.
In our recent study, we examined whether ants in the Brazilian Cerrado follow the “grain‐size hypothesis,” which proposes that larger ants should have proportionally longer legs to move efficiently across different environments. We used Ectatomma permagnum, a common predatory ant in the Cerrado, measuring hundreds of individuals collected from various ...
A. Sandim, R. Aranda
wiley   +1 more source

How Management Practices Shape the “Local Habitat Signature” That Modulates Bird Communities in Urban Green Spaces

open access: yesBiotropica, Volume 58, Issue 1, January 2026.
Local scale factors, not just the broad urban gradient, are the key drivers of urban bird communities. Our multi‐scale study found that specific management practices, such as managing leaf litter depth or the presence of unmanaged tall grass, explained the largest portion of variation in bird composition.
Tulaci Bhakti   +3 more
wiley   +1 more source

Finite Element Model for Nonlinear Analysis of Reinforced Concrete Beams and Plane Frames

open access: yesRevista IBRACON de Estruturas e Materiais
In this work, a two-dimensional finite element (FE) model for physical and geometric nonlinear analysis of reinforced concrete beams and plane frames, developed by the authors, is presented.
R.S.B. STRAMANDINOLI, H.L. LA ROVERE
doaj   +1 more source

Comparação Do Desempenho De Alto-falantes E Caixas Acústicas Excitados Por Fonte De Tensão E Corrente

open access: yesEletrônica de Potência, 2004
O método de Thiele-Small para projeto de caixas acústicas considera o modelo linear do alto-falante excitado por fonte de tensão, operando com pequenos sinais.
Rosalfonso Bortoni   +2 more
doaj   +1 more source

Temporal Changes in Land Use Highlight the Vulnerability of Highland Grasslands in Protected Areas in Southern Brazil

open access: yesBiotropica, Volume 58, Issue 1, January 2026.
Subtropical Highland Grasslands showed greater net conversion than Mixed Ombrophilous Forest across our study PAs. In one PA created to conserve Highland Grasslands, net grassland loss inside the PA exceeded loss in adjacent buffer zones during the study period.
Ricardo Jerozolimski   +2 more
wiley   +1 more source

Algoritmo numérico para solução da programação mista não-linear e inteira

open access: yesVetor, 2008
O presente trabalho apresenta a formulação e implementação de um algoritmo para a solução de problemas convexos de programação mista não-linear e inteira (MINLP).
Elaine Corrêa Pereira   +1 more
doaj   +4 more sources

Classificação de disfonias por meio da análise de medidas não lineares e de quantificação de recorrência

open access: yesRevista Principia, 2018
Nos últimos anos, técnicas de processamento digital de sinais de voz vêm sendo empregadas como ferramentas auxiliares na avaliação de desvios vocais, trazendo maior comodidade ao paciente, baixo custo e caráter objetivo, comparado às técnicas ...
Giulliana Karla Lacerda Pereira de Queiroz   +4 more
doaj   +1 more source

Intervenção de esportes modificados para melhorar metas de participação e competências de atividade em crianças deambuladoras com paralisia cerebral: um ensaio clínico randomizado

open access: yesDevelopmental Medicine &Child Neurology, Volume 68, Issue 1, Page e1-e15, January 2026.
Intervenções de esportes modificados para crianças com Paralisia Cerebral: Resumo gráfico. Resumo Objetivo Avaliar a eficácia de uma intervenção de esportes modificados (Sports Stars Brasil) nos objetivos de participação em atividades físicas de lazer, desempenho e capacidade motora, funções corporais, níveis de atividade física, alfabetização física e
Ricardo R. Sousa Junior   +7 more
wiley   +1 more source

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